U20A4

U20A4 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

U20A4 Diagnosis

The fuse in the main PDM powering this circuit may be open. The root cause could be excessive loads on an output, or a short to ground in the VBAT2 supply to the CHM.The BHM is detecting more than one smart switch with the same ID number present on the vehicle. The outputs controlled by the switch and the indicator in the switch are commanded FF.

The End of Frame air output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for an End of Frame air solenoid fault, and for an air pressure switch short circuit fault.

Ford U20A4 Fault Code Meaning :

Ford U20A4 Symptoms :

Ford U20A4 Reasons :

How To Fix Ford U20A4 Trouble Code ?

Which Ford cars have the code U20A4?

  • U20A4 Ford Aerostar
  • U20A4 Ford Bronco
  • U20A4 Ford C-Max
  • U20A4 Ford C-Max Energi
  • U20A4 Ford C-Max Hybrid
  • U20A4 Ford Contour
  • U20A4 Ford Crown Victoria
  • U20A4 Ford EcoSport
  • U20A4 Ford Econoline
  • U20A4 Ford Edge
  • U20A4 Ford Escape
  • U20A4 Ford Escape Hybrid
  • U20A4 Ford Escort
  • U20A4 Ford Everest
  • U20A4 Ford Excursion
  • U20A4 Ford Expedition
  • U20A4 Ford Explorer
  • U20A4 Ford Explorer Sport Trac
  • U20A4 Ford F-150
  • U20A4 Ford F-250
  • U20A4 Ford F-350
  • U20A4 Ford Fiesta
  • U20A4 Ford Flex
  • U20A4 Ford Focus
  • U20A4 Ford Focus Electric
  • U20A4 Ford Freestar
  • U20A4 Ford Freestyle
  • U20A4 Ford Fusion
  • U20A4 Ford Fusion Energi
  • U20A4 Ford Fusion Hybrid
  • U20A4 Ford Fusion Plug-In Hybrid
  • U20A4 Ford GT
  • U20A4 Ford Mustang
  • U20A4 Ford Mustang Mach-E
  • U20A4 Ford Mystique
  • U20A4 Ford Probe
  • U20A4 Ford Ranger
  • U20A4 Ford Taurus
  • U20A4 Ford Taurus X
  • U20A4 Ford Tempo
  • U20A4 Ford Thunderbird
  • U20A4 Ford Transit
  • U20A4 Ford Transit Connect
  • U20A4 Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.